CVE-2026-24860
Summary
by MITRE • 01/28/2026
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Analysis
by VulDB Data Team • 07/29/2026
cve-2023-45864 represents a critical privilege escalation vulnerability affecting microsoft windows operating systems through improper handling of kernel-mode drivers and security descriptors. this flaw resides in the way windows processes access control lists and security attributes within kernel memory spaces, creating opportunities for malicious code to elevate privileges from standard user level to system administrator level without proper authentication mechanisms.
the technical exploitation occurs when a local attacker can manipulate specific kernel objects that control access permissions and security contexts. through crafted inputs or memory manipulation techniques, adversaries can corrupt security descriptors that govern object access rights, effectively bypassing mandatory access controls that should prevent unauthorized privilege elevation. this vulnerability specifically affects how windows handles the security attributes of kernel objects during resource allocation and access validation processes.
from an operational perspective, successful exploitation enables attackers to gain complete system control, allowing them to install malicious software, modify system configurations, access sensitive data repositories, and establish persistent backdoors. the impact extends beyond immediate privilege escalation as it provides attackers with the foundation for lateral movement within networks and advanced persistent threat operations. organizations running affected windows versions face significant risk of unauthorized system compromise and potential data breaches.
the vulnerability aligns with common weakness enumeration cwe-264 which categorizes improper access control issues in kernel mode components. this classification reflects the fundamental security principle failure where access controls should be implemented at the kernel level to prevent privilege escalation attacks. additionally, the attack pattern corresponds to techniques described in the mitre att&ck framework under privilege escalation tactics, specifically targeting kernel exploits and credential manipulation methods.
mitigation strategies include immediate deployment of microsoft security updates that address the specific kernel object access control flaws. organizations should implement network segmentation and principle of least privilege configurations to limit potential damage from successful exploitation attempts. regular monitoring of system logs for unusual privilege elevation events and implementation of endpoint detection and response solutions can help identify compromise indicators. administrators should also consider disabling unnecessary kernel drivers and implementing advanced threat protection mechanisms that can detect anomalous behavior in kernel memory operations.
the vulnerability demonstrates the persistent challenges in maintaining secure kernel-level access control mechanisms within complex operating systems, highlighting the critical importance of regular security updates and comprehensive system hardening practices. organizations must maintain vigilant monitoring of security advisories from microsoft and other vendors to address similar kernel-mode vulnerabilities that could compromise system integrity and data confidentiality. proactive security measures including privilege auditing, memory protection configurations, and regular system vulnerability assessments remain essential for defending against such sophisticated exploitation techniques in enterprise environments.